My friend, I look at it this way.
We get to a tipping point. Either we think we can try and manage an overfull glass until we can't and it tips over, or we see how close we are getting to falling before we stop.
The bottom or the top is different for everyone.
Any alcoholic (ie moi.) who have hit the depths of physical dependence would say, you got a step up on lots of us.
It's a choice. You got a good head start on the problem if you take measure to stop now.
Physical dependence is a biatch to overcome. Especially if you relapse.
Progressive is kind of a really mild, way too easy word.
You do not want to get to a point where you take a sip of hell and fall head first into it.
Quit while you're ahead.
Also your colleague sounds quite astute? If you are comfortable maybe talk with her some more. I could be wrong. But I would have never pointed out to someone that they were an alcoholic until I figured out I was one and wanted to help those I thought were in trouble, that I cared about. Not to call her out on it. It's food for thought tho.
The tipping point is nothing more than a choice. If you can't do it on your own, there is a ton of help to be had out there. You can do it.
Much love,
Del xo